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Since the start of the COVID-19 pandemic, a large number of trials have examined the efficacy of various medications as potential treatments for COVID-19, but a promising therapeutic option is still missing and under investigation. Molnupiravir is an investigational oral antiviral medication and a nucleoside analogue that suppresses SARS-CoV-2 replication and has been found to be active against common virus variations (including the Delta variant). Several phase 2 and 3 clinical trials have shown high efficacy for direct antiviral activity of molnupiravir as well as its favorable safety and tolerability in mild to moderate Covid-19 patients. The current study was done on five hospitalized, severe COVID-19 patients. It seems that in combination with remdesivir, this novel antiviral could exert a synergistic effect on reducing the severity of symptoms as well as the duration of hospitalization. However, further clinical studies on the use of molnupiravir in the treatment of severe COVID-19 are warranted.